Onvis Thread-Enabled HomeKit Door Window Contact Sensor,Wireless Mini Low-Energy Contact Sensor for Alarm System and Smart Home Automation, iOS Only (2Pack)

I’ve had multiple sets of sensors from Onvis and they work perfectly. Installation is easy and connectivity is smooth. The one and only time I had a connection issue with one of them, I contacted customer service and they were very helpful and even offered to replace for a new one. 100% recommend.

Super responsive and work great, just deducted a star as it's weird that they don't have the ability to show as tiles in homekit. Either way they're perfect for what I needed.

I have an Onvis motion sensor, and now I have acquired these Smart Contact Sensors as well. I like the fact that they connect directly to my Apple Home with ease. With a smart door lock and contact sensors on my doors, I can simply close the door behind me, and it automatically locks using automation. I can monitor whether my door is open or closed through either the Apple Home App or the Onvis Home App, which is pretty great. I can confidently say that I'm pleased with the products from Onvis, and I will most likely purchase more sensors in the future.

Have tried multiple Onvis products for the Matter/Thread support with Apple HomeKit and I'm pulling it all out of my smart home setup and going to Zigbee devices with Home Assistant. The Onvis stuff has been very unreliable. Clear line of sight with the hub about 20 feet away. Replaced with Zigbee devices and it's been rock solid ever since. These contact sensors I was able to return unused. To add insult to injury they deducted a "fee" from my refund. So much for Prime "free" refunds. No more Onvis for me.

I'm thrilled that more vendors are starting to offer Thread/Matter compatible low power devices. This is stimulating price competition, to the benefit of consumers (i.e. you and me). The Onvis Door & Window contact sensor installed on the first try, and works perfectly with my Homekit setup to control a light in a closet. I'll install the second one soon on my crawlspace door to control the light switch that is in an almost unreachable location. I expect it will be as easy as the first.

The product functions correctly and was easy to install into Apple Home. However, I had hoped the device could appear as a Tile in the Home view of the Apple Home app. This would give me the open/closed status of all entries into my house; one look... all are closed/locked. I don't understand why the option to "Include in Favorites" is not provided.

A perfect affordable item if you’re looking to pair it within your Apple HomeKit system. Customer service is prompt and informative with any questions/concerns you may have and are eager to help.

I bought these sensors to add to our mailbox to be alerted when our mail came. I paired it with a smart bulb that turns green when the sensor is opened, and it works perfectly! The only downside is our mailbox is in a room without heating which lead to the battery dying within about a week. I have zero doubt that using the device within the recommended temperature ranges would solve this problem, but it is worth knowing that cold drains these batteries quickly.